api tests: Update remove-subscriptions fixture.
api tests: Update remove-subscriptions fixture.

The remove-subscriptions API client response
changed with python-zulip-api:67cdb6f

rishig/zulip,shubhamdhama/zulip,kou/zulip,tommyip/zulip,dhcrzf/zulip,jackrzhang/zulip,punchagan/zulip,brainwane/zulip,rishig/zulip,zulip/zulip,timabbott/zulip,showell/zulip,shubhamdhama/zulip,timabbott/zulip,showell/zulip,timabbott/zulip,tommyip/zulip,showell/zulip,brainwane/zulip,hackerkid/zulip,showell/zulip,andersk/zulip,dhcrzf/zulip,kou/zulip,rht/zulip,dhcrzf/zulip,hackerkid/zulip,eeshangarg/zulip,rht/zulip,hackerkid/zulip,synicalsyntax/zulip,zulip/zulip,jackrzhang/zulip,rht/zulip,rishig/zulip,andersk/zulip,brainwane/zulip,tommyip/zulip,rishig/zulip,jackrzhang/zulip,tommyip/zulip,synicalsyntax/zulip,kou/zulip,punchagan/zulip,eeshangarg/zulip,zulip/zulip,kou/zulip,andersk/zulip,punchagan/zulip,hackerkid/zulip,tommyip/zulip,punchagan/zulip,eeshangarg/zulip,kou/zulip,kou/zulip,punchagan/zulip,synicalsyntax/zulip,timabbott/zulip,timabbott/zulip,brainwane/zulip,eeshangarg/zulip,rht/zulip,dhcrzf/zulip,jackrzhang/zulip,showell/zulip,tommyip/zulip,shubhamdhama/zulip,rishig/zulip,zulip/zulip,hackerkid/zulip,rht/zulip,rht/zulip,brainwane/zulip,jackrzhang/zulip,synicalsyntax/zulip,kou/zulip,timabbott/zulip,dhcrzf/zulip,jackrzhang/zulip,tommyip/zulip,shubhamdhama/zulip,shubhamdhama/zulip,brainwane/zulip,synicalsyntax/zulip,eeshangarg/zulip,rishig/zulip,punchagan/zulip,jackrzhang/zulip,shubhamdhama/zulip,synicalsyntax/zulip,rht/zulip,zulip/zulip,showell/zulip,andersk/zulip,showell/zulip,dhcrzf/zulip,zulip/zulip,shubhamdhama/zulip,andersk/zulip,rishig/zulip,andersk/zulip,timabbott/zulip,eeshangarg/zulip,hackerkid/zulip,hackerkid/zulip,punchagan/zulip,andersk/zulip,synicalsyntax/zulip,eeshangarg/zulip,zulip/zulip,dhcrzf/zulip,brainwane/zulip